I'm still trying to get the basic concepts into my head. What I can't really wrap my head around is the endurance, or better, which factors influence the endurance how?
Of course, it's clear that weight is a factor and battery capacity. Then probably, the motors have some range in which they operate more efficiently.
If I look e.g. at commercial drones like the Microdrones things. They boast endurance of up to 70 mins in a quadrotor.. Here my problems start because as I understand it...:
If I want to have more endurance, I need more mAh. More mAh = bigger batts = more weight = less endurance. Much more weight = overload = need for bigger props + bigger motors, amybe bigger airframe alltogether = more power consumption = less endurance.
But that is only my view of the things, based on basic understanding and some applied logic.
So the question remains...:
Which factors influence the endurance of a multi-rotor in which way? How do I build a multi-rotor which can carry 2 cams (FPV + recording) with, let's say, an hour flight time?